The service provides some of the most comprehensive and unique treatment modalities in the country, including specialty housing units for individuals with serious mental illness, a 24-hour on-call psychiatric service, robust creative arts programming, a strong DBT training program, clinics in each of the facilities, substance-use treatment, integrated reentry services, and relationships with multiple training institutions throughout the city. PAGNY is one of the largest physician groups in the country and directly employs nearly 4,000 physicians and allied health professionals who provide services to NYC Health + Hospitals, the largest municipal health care system in the nation, serving more than a million New Yorkers annually.